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Browsing Faculty Research Publications (College of Forestry & Oregon Forest Research Laboratory) by Title

Browsing Faculty Research Publications (College of Forestry & Oregon Forest Research Laboratory) by Title

Now showing items 271-290 of 368

Rangeland Privatization and the Maasai Experience: Social Capital and the Implications for Traditional Resource Management in Southern Kenya

Sundstrom, Shiloh; Tynon, Joanne F.; Western, David (Taylor & Francis, 2012)

Using qualitative research methods we examined how group ranch privatization and settlement of individual Maasai households across the landscape have affected traditional livestock herding and social capital mechanisms o ...
Reconciling estimates of the contemporary North American carbon balance among terrestrial biosphere models, atmospheric inversions, and a new approach for estimating net ecosystem exchange from inventory-based data

Hayes, Daniel J.; Turner, David P.; Stinson, Graham; McGuire, A. David; Wei, Yaxing; West, Tristram O.; Heath, Linda S.; de Jong, Bernardus; McConkey, Brian G.; Birdsey, Richard A.; Kurz, Werner A.; Jacobson, Andrew R.; Huntzinger, Deborah N.; Pan, Yude; Post, W. Mac; Cook, Robert B. (Wiley-Blackwell, 2012-04)

We develop an approach for estimating net ecosystem exchange (NEE) using inventory-based information over North America (NA) for a recent 7-year period (ca. 2000–2006). The approach notably retains information on the spa ...
Reduced wood stiffness and strength, and altered stem form, in young antisense 4CL transgenic poplars with reduced lignin contents

Voelker, S. L.; Lachenbruch, B.; Meinzer, F. C.; Strauss, S. H. (Wiley-Blackwell, 2011)

• Reduced lignin content in perennial crops has been sought as a means to improve biomass processability for paper and biofuels production, but it is unclear how this could affect wood properties and tree form. • Here ...
Reducing Crime and Violence on Public Lands: Case Studies in the USDA Forest Service

Chavez, Deborah J.; Tynon, Joanne F.; Knap, Nancy E. (Sagamore Publishing, 2004)

Studies on types and impacts of crime have indicated that crime and violent acts do occur on public lands and have negative consequences for managers of those lands and recreation visitors. It is important, then, to eval ...
Reduction in carbon uptake during turn of the century drought in western North America

Schwalm, Christopher R.; Williams, Christopher A.; Schaefer, Kevin; Baldocchi, Dennis D.; Black, T. Andrew; Goldstein, Allen H.; Law, Beverly E.; Oechel, Walter C.; Paw U, Kyaw Tha; Scott, Russel L. (Nature Publishing Group, 2012-08)

Fossil fuel emissions aside, temperate North America is a net sink of carbon dioxide at present¹⁻³. Year-to-year variations in this carbon sink are linked to variations in hydroclimate that affect net ecosystem productiv ...
Reforestation knowledge: perspectives and synthesis for managers

Tesch, Steven D.; Lysne, David H; Lewis, Robert A.; Brown, Charles J. (Corvallis, OR: Forest Research Laboratory. Oregon State University, 1992)
Regenerating white spruce, paper birch, and willow in south-central Alaska

Cole, E. C.; Newton, Michael; Youngblood, A. (NRC Canada, 1999)

The current spruce bark beetle (Dendroctonus rufipennis Kirby) epidemic in interior Alaska is leaving large expanses of dead spruce with little spruce regeneration. Many of these areas are habitat for moose (Alces alces) ...
Regeneration imputation models for complex stands of southeastern British Columbia

Hassani, Badre T.; LeMay, Valerie; Marshall, Peter L.; Temesgen, Hailemariam; Zumrawi, Abdel-Azim (Canadian Institute of Forestry, 2004)

Two imputation techniques for predicting natural regeneration in complex stands prevalent in southeastern British Columbia (BC) were compared using data from the Interior Cedar-Hemlock moist warm subzone variant 2 (ICHmw ...
Regeneration surveys and evaluation

Stein, William I. (Corvallis, Or. : Forest Research Laboratory, Oregon State University, 1992)
Regional carbon dioxide implications of forest bioenergy production

Hudiburg, Tara; Law, Beverly; Wirth, Christian; Luyssaert, Sebastiaan (Nature Publishing Group, 2011-10-23)

Mitigation strategies for reducing CO2 emissions include substitution of fossil fuel with bioenergy from forests, where carbon emitted is expected to be re-captured in the growth of new biomass to achieve zero net emissi ...
Regional Height-Diameter Equations for Maior Tree Species of Southwest Oregon

Temesgen, Hailemariam; Hann, David W.; Monleon, Vincente J. (Society of American Foresters, 2007-07)

Selected tree height and diameter functions were evaluated for their predictive abilities for major tree species of southwest Oregon. Two sets of equations were evaluated. The first set included four base equations for e ...
Relating Forest Attributes with Area- and Tree-Based Light Detection and Ranging Metrics for Western Oregon

Goerndt, Michael E.; Monleon, Vicente J.; Temesgen, Hailemariam (Society of American Foresters, 2010-07)

Three sets of linear models were developed to predict several forest attributes, using stand-level and single-tree remote sensing (STRS) light detection and ranging (LiDAR) metrics as predictor variables. The first used ...
Relationship between incipient decay, strength, and chemical composition of Douglas-fir heartwood

Winandy, Jerrold E.; Morrell, Jeffrey J. (Society of Wood Science and Technology, 1993-07)

A new laboratory technique to simulate the initiation of wood decay and to assess the effects of incipient decay on material properties is described. Douglas-fir heartwood specimens were exposed to brown-rot (Postia plac ...
Relationships of density, microfibril angle, and sound velocity with stiffness and strength in mature wood of Douglas-fir

Lachenbruch, B.; Johnson, G. R.; Downes, G.; Evans, R. (NRC Press, 2010)

The relative importance of density, acoustic velocity, and microfibril angle (MFA) for the prediction of the stiffness (MOE) and strength (MOR) has not been well established for Douglas-fir (Pseudotsuga menziesii). MOE a ...
Relative growth rates of vines and shrubs of western poison oak, Toxicodendron diversilobum (Anacardiaceae)

Gartner, B. L. (Botanical Society of America, 1991)

Because of different mechanical constraints on vines and self-supporting plants, vines are thought to differ from trees and shrubs in a variety of their growth characteristics. I tested the hypotheses that vines grow fa ...
Remote sensing of tropical ecosystems: Atmospheric correction and cloud masking matter

Hilker, Thomas; Lyapustin, Alexei I.; Tucker, Compton J.; Sellers, Piers J.; Hall, Forrest G.; Wang, Yujie (Elsevier, 2012-12)

Tropical rainforests are significant contributors to the global cycles of energy, water and carbon. As a result, monitoring of the vegetation status over regions such as Amazônia has been a long standing interest of Eart ...
Resistance of Selected Wood-Based Materials to Fungal and Termite Attack in Non–Soil Contact Exposures

Morrell, Jeffrey J. (Forest Products Society, 2011)

The resistance of three naturally durable heartwood species and a stranded giant bamboo product to fungal and termite (Coptotermes formosanus) attack was evaluated at a test site located near Hilo, Hawaii. Merbau (Intsia ...
Respiration, nitrogen fixation, and mineralizable nitrogen spatial and temporal patterns within two Oregon Douglas-fir stands

Hope, Sharon M.; Li, Ching-Yan (NRC Canada, 1997-04)

Substrate respiration, mineralizable nitrogen, and nitrogen fixation rates, substrate moisture content, and temperature were measured in trenched and undisturbed plots within two western Oregon Douglas-fir (Pseudotsuga m ...
Revisiting the neutral axis in wood beams

Davis, Philip M.; Gupta, Rakesh; Sinha, Arijit (Walter de Gruyter & Co., 2012-05)

For wood beams, it is often assumed that the neutral axis (NA) is located at the centroid of the beam. This would be the case for isotropic and homogeneous materials but these prerequisites are not valid for wood. The va ...
Risk Analysis Procedure for Woodframe Roof Sheathing Panel Debris Impact to Windows in Hurricanes

Dao, Thang N.; van de Lindt, John W.; Prevatt, David O.; Gupta, Rakesh (Elsevier, 2012-02)

The assessment of losses during extreme events such as hurricanes is important for performance-based design of residential buildings. In this paper, a methodology for estimating the risk of debris impact, specifically ...